新疆尉犁蛭石矿工业蛭石化学法膨胀的实验研究  

STUDY ON CHEMICAL EXFOLIATION OF INDUSTRIAL VERMICULITE FROM WEILI MINE,XINJIANG

作　　者：赵双盟[1] 彭同江[1] 孙红娟[1] 

机构地区：[1]西南科技大学矿物材料及应用研究所,四川绵阳621010

出　　处：《矿物岩石》2006年第2期30-34,共5页Mineralogy and Petrology

基　　金：国家自然科学基金资助项目(40102006)

摘　　要：在对采自新疆尉犁蛭石矿的工业蛭石样品进行化学成分和XRD分析研究基础上,选用工业级双氧水作为化学膨胀处理剂进行化学膨胀处理试验研究,结果表明:工业蛭石的化学膨胀特点和影响工业蛭石膨胀效果的主要因素是其晶层层间域中的过氧化氢分子在分解过程中所产生的氧气压力。对蛭石样品用不同浓度的双氧水作用相同的时间或用相同浓度的双氧水作用不同时间后发现:用浓度为25%的双氧水处理工业蛭石样品可以达到大于4倍的体积膨胀,膨胀后的工业蛭石样品的结构特征无明显变化,并能保持工业蛭石膨胀产物的韧性。This work discussed the chemical exfoliation on the industrial vermiculite samples from Welli Mine of Xinhjiang. Industrial grade hydrogen peroxide solutions are used as chemical exfoliation reagents,The characteristic and primary effect factors of the industrial vermiculite chemical exfoliating are discussed on the basis of the chemical composition and XRD of the industrial vermiculite sample. The exfoliation results and structure change are described with the expand times and XRD. The results show that the industrial vermiculite can expand as big as 4 times when exfoliating with 25 % hydrogen peroxide solutions,and the expanded industrial vermiculites samples are of no obvious structure change and preserve their ductility,

关 键 词：新疆尉犁 工业蛭石 化学膨胀 微波处理 双氧水 

分 类 号：P578.963[天文地球—矿物学]